Issued:
2021-02-03
Updated:
2021-02-03

RHSA-2021:0395 - Important: RHV-H security, bug fix, enhancement update redhat-virtualization-host - 4.3.13

Synopsis

Important: RHV-H security, bug fix, enhancement update (redhat-virtualization-host) 4.3.13

Type/Severity

Security Advisory Important

Topic

An update for redhat-virtualization-host is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host. Red Hat Virtualization Hosts (RHVH) are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks.

Security Fix(es):

  • sudo: Heap buffer overflow in argument parsing (CVE-2021-3156)

  • dnsmasq: loose address/port check in reply_query() makes forging replies easier for an off-path attacker (CVE-2020-25684)

  • dnsmasq: loose query name check in reply_query() makes forging replies easier for an off-path attacker (CVE-2020-25685)

  • dnsmasq: multiple queries forwarded for the same name makes forging replies easier for an off-path attacker (CVE-2020-25686)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

  • When performing an upgrade of the Red Hat Virtualization Host using the command yum update, the yum repository for RHV 4.3 EUS is unreachable

As a workaround, run the following command: # yum update --releasever=7Server (BZ#1899378)

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/2974891

Affected Products

ProductVersionArch
Red Hat Virtualization4x86_64
Red Hat Virtualization for IBM Power LE4ppc64le
Red Hat Virtualization Host4x86_64

Updated Packages

  • redhat-release-virtualization-host-4.3.13-2.el7ev.x86_64.rpm
  • vdsm-hook-vmfex-dev-4.30.51-1.el7ev.noarch.rpm
  • vdsm-hook-checkips-4.30.51-1.el7ev.ppc64le.rpm
  • vdsm-client-4.30.51-1.el7ev.noarch.rpm
  • vdsm-hook-checkips-4.30.51-1.el7ev.x86_64.rpm
  • vdsm-yajsonrpc-4.30.51-1.el7ev.noarch.rpm
  • vdsm-hook-ethtool-options-4.30.51-1.el7ev.noarch.rpm
  • redhat-release-virtualization-host-4.3.13-2.el7ev.src.rpm
  • vdsm-hook-nestedvt-4.30.51-1.el7ev.noarch.rpm
  • vdsm-api-4.30.51-1.el7ev.noarch.rpm
  • vdsm-hook-localdisk-4.30.51-1.el7ev.noarch.rpm
  • vdsm-4.30.51-1.el7ev.src.rpm
  • vdsm-hook-fcoe-4.30.51-1.el7ev.noarch.rpm
  • vdsm-python-4.30.51-1.el7ev.noarch.rpm
  • vdsm-hook-extra-ipv4-addrs-4.30.51-1.el7ev.ppc64le.rpm
  • vdsm-network-4.30.51-1.el7ev.x86_64.rpm
  • vdsm-hook-vhostmd-4.30.51-1.el7ev.noarch.rpm
  • vdsm-hook-macspoof-4.30.51-1.el7ev.noarch.rpm
  • vdsm-http-4.30.51-1.el7ev.noarch.rpm
  • redhat-virtualization-host-4.3.13-20210127.0.el7_9.src.rpm
  • redhat-virtualization-host-image-update-4.3.13-20210127.0.el7_9.noarch.rpm
  • vdsm-hook-extra-ipv4-addrs-4.30.51-1.el7ev.x86_64.rpm
  • redhat-virtualization-host-image-update-placeholder-4.3.13-2.el7ev.noarch.rpm
  • vdsm-gluster-4.30.51-1.el7ev.x86_64.rpm
  • vdsm-4.30.51-1.el7ev.x86_64.rpm
  • vdsm-gluster-4.30.51-1.el7ev.ppc64le.rpm
  • vdsm-hook-cpuflags-4.30.51-1.el7ev.noarch.rpm
  • vdsm-jsonrpc-4.30.51-1.el7ev.noarch.rpm
  • vdsm-common-4.30.51-1.el7ev.noarch.rpm
  • vdsm-4.30.51-1.el7ev.ppc64le.rpm
  • vdsm-hook-openstacknet-4.30.51-1.el7ev.noarch.rpm
  • vdsm-network-4.30.51-1.el7ev.ppc64le.rpm

Fixes

CVEs

References

Additional information